From a96b0df624247660d7a5fc620d3e82af1d124de2 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Tue, 18 Jun 2002 16:49:45 +0000
Subject: Patch from SF bug 570483 (Tim Northover).

In a fresh interpreter, type.mro(tuple) would segfault, because
PyType_Ready() isn't called for tuple yet.  To fix, call
PyType_Ready(type) if type->tp_dict is NULL.
---
 Lib/test/test_descr.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 852115b..2129a7b 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -3169,6 +3169,12 @@ def do_this_first():
     except:
         pass
 
+    if verbose:
+        print "Testing SF bug 570483..."
+    # Another segfault only when run early
+    # (before PyType_Ready(tuple) is called)
+    type.mro(tuple)
+
 def test_main():
     do_this_first()
     class_docstrings()
-- 
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